Update docker.io/alfresco/alfresco-activemq Docker tag to v5.18.6

Author: renovate[bot]

xenit-alfresco/values.yaml

@@ -127,7 +127,7 @@ mq:
   image:
     registry: 'docker.io'
     repository: 'alfresco/alfresco-activemq'
-    tag: '5.18.3-jre17-rockylinux8@sha256:25386b20263b7e838605e07fea2713fb65762010c1c677cf82aecefbaed5d227'
+    tag: '5.18.6-jre17-rockylinux8@sha256:e472307e76681bbb988e2a7b1076d80a75bed611262cb36d80011bb0d216c637'
   strategy:
     type: Recreate
   resources: